Stable optimal model reduction of linear discrete-time systems

N. N. Puri, M. T. Lim

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A new algorithm is presented for finding reduced-order modelsof the linear time-invariant systems. Proposed recursive algorithmminimizes a weighted mean squared impulse (or step)response error between the original system and the reducedorder model. This proposed optimization algorithm requiresolving very easy linear equations rather than the usual complicatednon-linear equations. The procedure guarantees a reducedorder stable model at each recursive stage. Method iseasily extended to multi-input/multi-output systems. Algorithm'sperformance is compared with other methods reported in theliterature.

Original languageEnglish
Pages (from-to)300-304
Number of pages5
JournalJournal of Dynamic Systems, Measurement and Control, Transactions of the ASME
Issue number2
Publication statusPublished - 1997 Jun
Externally publishedYes

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Information Systems
  • Instrumentation
  • Mechanical Engineering
  • Computer Science Applications


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